Home / 16,509.12-22,782.36-9,435.39

Finding the Fourth Proportional to 16,509.12, 22,782.36 and 9,435.39

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Solution

The fourth proportional to 16,509.12, 22,782.36 and 9,435.39 is: 13,020.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,509.12 : 22,782.36 = 9,435.39 : x
  2. Step 2: Convert to fraction form
    16,509.12/22,782.36 = 9,435.39/x
  3. Step 3: Cross multiply
    16,509.12x = 22,782.36 × 9,435.39
  4. Step 4: Simplify right side
    16,509.12x = 214,960,451.72
  5. Step 5: Solve for x
    x = 214,960,451.72/16,509.12
  6. Step 6: Final answer
    x = 13,020.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.